<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>订餐大师</title>
    <script src="../js/index.js"></script>
</head>
<body>
<div >
 <button id="order" style="
 width: 80%;height: 30px;left: 10%; top: 100px; text-align: center" onclick="order_dinner()">帮订餐</button>
</div>
</body>
</html>